Granted Patent
Utility
US 6,074,492 · App. 09/000,790
Bonded Nd-Fe-B magnets without volumetric expansion defects
Inventor:
Viswanathan Panchanathan
Patented Case
View Patent ↗
Granted: Jun 13, 2000
Filed: Dec 30, 1997
Inventor
Viswanathan Panchanathan
Assignee (at issue)
Magnequench International, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.